DES MOINES, Iowa (AP) – Lawmakers in the Iowa Senate have approved legislation that will establish a task force to study breast tissue density. The bill passed unanimously Wednesday and will move to the state House for review. It replaced legislation which would have required breast density data be included in mammogram reports to patients and physicians. Instead, under this plan, the state will set up a task force to review how best to educate patients and doctors on this issue.

Experts say dense breast tissue can make it harder for a mammogram to catch a possible tumor and may increase the risk of breast cancer. But some doctors say this kind of notification could needlessly worry women and the state should leave such matters to physicians.